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计及转子斜槽时笼型感应电机电磁振动变化规律的研究

DOI: 10.13334/j.0258-8013.pcsee.2015.15.025, PP. 3948-3955

Keywords: 感应电机,电磁力,电磁振动,斜槽,频谱分析

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Abstract:

以一台Y802-2笼型感应电机为例,进行电磁振动的研究。基于瞬态磁场结果,结合麦克斯韦方程,对电机所受电磁力进行计算,并把气隙中靠近定子内径上点的电磁力作为载荷条件,对三维电机模型进行电磁振动的研究。得到电机的振动位移曲线,并运用傅里叶分解、频谱分析的方法对振动位移的频率、幅值进行了计算,通过比较转子非斜槽与斜槽两种不同情况下齿谐波对应频率的幅值大小,定量分析了斜槽对电磁振动的影响。最后,利用加速度传感器对电机径向振动进行了测试,实验证明了结论的正确性。该文计算电磁振动的方法也可以为研究其他的振动问题提供参考。

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